circulating plasma volume

Blood is a red viscous suspension of blood cells and plasma. Among them, blood cells account for about 45% of whole blood, and plasma accounts for about 55%. Blood cells include red blood cells, white blood cells, and platelets. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Common in dehydration, secondary polycythemia and other diseases. Normal value: Male: 80.8-83.9ml/kg Female: 71.8-75.2ml/kg Above normal: Common in polycythemia vera, anemia, hypoxia and other diseases. negative: Positive: Tips: It is advisable to take blood in the morning. Normal value 131I-HSA method: Male: 80.8 ~ 83.9ml / kg. Female: 71.8 ~ 75.2ml / kg. Clinical significance (1) Increase: polycythemia vera, anemia, hypoxia. (2) reduction: dehydration, secondary polycythemia. Low results may be diseases: high anemia results may be diseases: secondary erythrocytosis considerations The trace blood taken at the finger and other parts has many factors affecting the measurement results. Therefore, the China Medical Inspection Branch recommends that venous blood should be taken as much as possible. The blood cell count results changed a lot in the afternoon, more in the afternoon, and more stable in the morning. In addition to the emergency department, it is better to take blood in the morning. Inspection process Subjects were venously collected and assayed in time for serum separation. Not suitable for the crowd 1. Patients who have taken contraceptives, thyroid hormones, steroid hormones, etc., may affect the results of the examination and prohibit patients who have recently taken the drug history. 2, special diseases: patients with hematopoietic function to reduce disease, such as leukemia, various anemia, myelodysplastic syndrome, etc., unless the examination is essential, try to draw less blood. Adverse reactions and risks 1, subcutaneous hemorrhage: due to pressing time less than 5 minutes or blood draw technology is not enough, etc. can cause subcutaneous bleeding. 2, discomfort: the puncture site may appear pain, swelling, tenderness, subcutaneous ecchymosis visible to the naked eye. 3, dizzy or fainting: in the blood draw, due to emotional overstress, fear, reflex caused by vagus nerve excitement, blood pressure decreased, etc. caused by insufficient blood supply to the brain caused by fainting or dizziness. 4. Risk of infection: If you use an unclean needle, you may be at risk of infection.